Fountain-pen



FIG. 1 is an exploded front elevational view of a fountain pen showingmy new design, the opposite side of the nib being conventional;

FIG. 2 is an inverted rear perspective view of the fountain pen in theclosed condition; and

FIG. 3 is a rear perspective view of FIG. 1 in the closed condition.

The ornamental design for a fountain pen, substantially as shown anddescribed.